Robot arm apparatus



FIG. 1 is a perspective elevational view from a top-front-right direction of the robot arm apparatus;

FIG. 2 is a perspective elevational view from a bottom-front-left direction thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan elevational view thereof;

FIG. 6 is a bottom elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a left side elevational view thereof. 

CLAIM The ornamental design for a robot arm apparatus, as shown and described. 